#coding:utf8

#自定义过滤器,实现热门新闻颜色提示
from flask import session, g
from functools import wraps

def do_index_class_filter(index):

    if index == 1:
        return "first"
    elif index == 2:
        return "second"
    elif index == 3:
        return "third"
    else:
        return ""


#判断用户登陆装饰器
def user_login_data(view_func):
    @wraps(view_func)
    def wrapper(*args,**kwargs):
        #获取到用户编号
        user_id = session.get("user_id")

        #查询用户对象
        user = None
        if user_id:
            from info.models import User
            user = User.query.get(user_id)

        #将用户对象设置到g对象中
        g.user = user

        return view_func(*args,**kwargs)
    return wrapper